Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1797974 | Journal of Magnetism and Magnetic Materials | 2016 | 6 Pages |
Abstract
The origin of large perpendicular magnetocrystalline anisotropy (PMCA) in Fe/MgO (001) is revealed by comparing Fe layers with and without the MgO. Although Fe-O p-d hybridization is weakly present, it cannot be the main origin of the large PMCA as claimed in previous study. Instead, perfect epitaxy of Fe on the MgO is more important to achieve such large PMCA. As an evidence, we show that the surface layer in a clean free-standing Fe (001) dominantly contributes to EMCA, while in the Fe/MgO, those by the surface and the interface Fe layers contribute almost equally. The presence of MgO does not change positive contribution from ãxz|âZ|yzã, wherease it reduces negative contribution from ãz2|âX|yzã and ãxy|âX|xz,yzã.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Dorj Odkhuu, Won Seok Yun, S.H. Rhim, Soon Cheol Hong,